Personal and Scientific News. 271 
fragmentary specimen is sufficiently explanatory. The power of star- 
fish to reproduce their arms is often seen on the living specimens of 
the seashore. But few persons have access to living crinoids, and their 
studies in this direction must be made upon fossil forms as in the 
present case. Aug. F. Foerste. 
PERSONAL AND SCIENTIFIC NEWS. 
The World's Congress on Geology, an auxiliary of the 
Columbian Exposition, was held in Chicago during the week 
August 21 to 26. Its sessions occupied the forenoons, leaving 
the afternoons for attending the World's Fair. The program 
for the first three days and portions of the later days consisted 
of the following papers by women who are teachers and spe- 
cial students of geology : 
Methods of teaching Geology. Miss Mary Holmes, Rockford, 111. 
Physical Geology. Miss Mary K. Andrews, Belfast, Ireland. 
Chemical Geology. Miss Louise Foster, Boston, Mass. 
Granites of Massachusetts and their Origin. Mrs. Ella F. Boyd, 
Hyde Park, Mass. 
Artistic Geology. Mrs. S. Maxon-Cobb, Boulder, Colo. 
The Geology of Ogle County. Mrs. C. M. Winston, Chicago. 
The Fossils of the Upper Silurian. Mrs. Ada D. Davidson, Oberlin, 
Ohio. 
Crinoidea and Blastoidea of the Kinderhook group as found in the 
quarries near Marshalltown, Iowa. Dr. Jennie MoGowen, Davenport, 
Iowa. 
The Evolution of the Brachiopoda. Miss Agnes Crane, Brighton, 
England. 
The Mastodon in northern Ohio, postglacial or preglacial. Miss 
Ellen Smith, Paynesville, Ohio. 
Paleontology. Miss Jane Donald, Carlisle, England. 
Glacial Markings. Miss Thomson, Newcastle, England. 
General sessions of the Congress were held from 10 to 1 
o'clock on the last three days of the week. On Thursday Dr. 
A. R. C. Selwyn presided, and after the address of welcome 
by Hon. Charles C.Bonney, President of the World's Congress 
Auxiliary, eight papers were presented, as follows: 
The Geology of Brazil. Dr. O. A. Derby, Director of the Geological 
Survey of Sao Paulo. (Absent; read by title.) 
The General Geology of Venezuela. Dr. Adolph Ernst, Special Del- 
egate from Venezuela to the Columbian Exposition. (Absent; read by 
title.) 
Pre-Cambrian Rocks of Wales. Dr. Henry Hicks, London, England. 
(Absent; read by Prof. C. R. Van Hise.) 
The Classification of the Rock Formations of Canada, with special 
reference to the Paleozoic Era. Henry M. Ami, Geological Survey of 
Canada. 
The Cordilleran Mesozoic Revolution. Dr. A. C. Lawson, University 
of California. (Absent; read by Prof. R. D. Salisbury.) 
The Oil Shales of the Scottish Carboniferous System. Henry M. 
Cadell, late of the Geological Survey, Scotland. (Absent; read by Prof. 
J. A. Holmes.) 
